Krahnstoever Davison Kirsten, Francis Lori A, Birch Leann L
Department of Health Policy, Management, and Behavior, University at Albany, State University of New York, One University Place, Room 183, Rensselaer, NY 12144, USA.
Obes Res. 2005 Nov;13(11):1980-90. doi: 10.1038/oby.2005.243.
It has been shown that girls from families in which mothers and fathers had high dietary intake and low physical activity (i.e., obesigenic families) were at increased risk of obesity from ages 5 to 7 years. This follow-up study uses additional data collected when girls were 9 and 11 years old to examine whether girls from obesigenic families continued to show greater increases in BMI over time and reported unhealthy dietary and activity patterns.
Families from the original cohort were reexamined when girls were 9 and 11 years of age. Parents' and girls' BMI, dietary intake, and physical activity and girls' percentage body fat and television viewing were assessed.
In comparison with girls from non-obesigenic families, girls from obesigenic families showed greater increases in BMI and BMI z score from ages 5 to 7 years that were maintained across ages 7 to 11 years. Furthermore, girls from obesigenic families had higher percentage body fat at ages 9 and 11 years. These results were independent of parents' BMI. Additional findings showed that girls from obesigenic families had diets higher in percentage fat and had higher levels of television viewing than girls from non-obesigenic families.
The environment that parents create, by way of their own dietary and physical activity behaviors, may have a lasting negative effect on children's weight trajectories and their emerging obesity risk behaviors, such as their dietary patterns. These findings further highlight the importance of the family in establishing children's obesity risk and the necessity of targeting parents of young children in obesity prevention efforts.
研究表明，来自父母饮食摄入量高且身体活动量低的家庭（即致肥胖家庭）的女孩在5至7岁时肥胖风险增加。这项随访研究利用女孩9岁和11岁时收集的额外数据，来检验来自致肥胖家庭的女孩随着时间推移BMI是否持续有更大幅度的增长，以及她们是否报告了不健康的饮食和活动模式。
当女孩9岁和11岁时，对原始队列中的家庭进行重新检查。评估了父母和女孩的BMI、饮食摄入量、身体活动量，以及女孩的体脂百分比和看电视时间。
与来自非致肥胖家庭的女孩相比，来自致肥胖家庭的女孩在5至7岁时BMI和BMI z评分增长幅度更大，且在7至11岁期间一直保持。此外，来自致肥胖家庭的女孩在9岁和11岁时体脂百分比更高。这些结果与父母的BMI无关。其他研究结果表明，与来自非致肥胖家庭的女孩相比，来自致肥胖家庭的女孩饮食中的脂肪百分比更高，看电视的时间也更长。
父母通过自身的饮食和身体活动行为所营造的环境，可能会对孩子的体重轨迹及其新出现的肥胖风险行为（如饮食习惯）产生持久的负面影响。这些研究结果进一步凸显了家庭在确定儿童肥胖风险方面的重要性，以及在预防肥胖工作中针对幼儿父母的必要性。
